From Wikipedia, the free encyclopedia
Poll source
|
Date(s) administered
|
Sample size
|
Margin of Error
|
|
|
Other
|
Undecided
|
|
|
Dean Heller Incumbent
|
Shelley Berkley
|
Public Policy Polling
|
August 23–26, 2012
|
831
|
± 3.4%
|
47%
|
45%
|
––
|
8%
|
Survey USA
|
August 16-21, 2012
|
869
|
± 3.4%
|
44%
|
39%
|
9%
|
8%
|
Rasmussen Reports
|
July 24, 2012
|
500
|
± 4.5%
|
51%
|
42%
|
2%
|
5%
|
Magellan Strategies
|
July 16–17, 2012
|
665
|
± 3.8%
|
45%
|
42%
|
––
|
13%
|
Public Policy Polling
|
June 7–10, 2012
|
500
|
± 4.4%
|
44%
|
43%
|
––
|
13%
|
NBC News/Marist
|
May 22–24, 2012
|
1,040
|
± 3.0%
|
46%
|
44%
|
––
|
10%
|
Rasmussen Reports
|
April 30, 2012
|
500
|
± 4.5%
|
51%
|
40%
|
2%
|
8%
|
Public Policy Polling
|
March 29 – April 1, 2012
|
553
|
± 4.2%
|
46%
|
43%
|
––
|
12%
|
Rasmussen Reports
|
March 19, 2012
|
500
|
± 4.5%
|
47%
|
40%
|
2%
|
11%
|
Cannon Survey Center
|
December 12–20, 2011
|
600
|
± 4%
|
43.2%
|
44.4%
|
––
|
6.9%
|
Public Policy Polling
|
October 20–23, 2011
|
500
|
± 4.4%
|
45%
|
45%
|
––
|
10%
|
Public Policy Polling
|
July 28–31, 2011
|
601
|
± 4.0%
|
46%
|
43%
|
––
|
12%
|
Public Policy Polling
|
April 21–24, 2011
|
491
|
± 4.4%
|
47%
|
43%
|
––
|
10%
|
Public Policy Polling
|
January 3–5, 2011
|
932
|
± 3.2%
|
51%
|
38%
|
––
|
16%
|
Hypothetical polling
|
Poll source
|
Date(s) administered
|
Sample size
|
Margin of error
|
Dean Heller (R)
|
Oscar Goodman (D)
|
Other
|
Undecided
|
Public Policy Polling
|
January 3–5, 2011
|
932
|
± 3.2%
|
45%
|
38%
|
––
|
16%
|
Poll source
|
Date(s) administered
|
Sample size
|
Margin of error
|
Dean Heller (R)
|
Catherine C. Masto (D)
|
Other
|
Undecided
|
Public Policy Polling
|
January 3–5, 2011
|
932
|
± 3.2%
|
46%
|
37%
|
––
|
16%
|
Poll source
|
Date(s) administered
|
Sample size
|
Margin of error
|
Dean Heller (R)
|
Ross Miller (D)
|
Other
|
Undecided
|
Public Policy Polling
|
January 3–5, 2011
|
932
|
± 3.2%
|
46%
|
34%
|
––
|
21%
|
- with John Ensign
Poll source
|
Date(s) administered
|
Sample size
|
Margin of error
|
John Ensign (R)
|
Shelley Berkley (D)
|
Other
|
Undecided
|
Public Policy Polling
|
January 3–5, 2011
|
932
|
± 3.2%
|
42%
|
45%
|
––
|
13%
|
Public Policy Polling
|
January 11–12, 2010
|
763
|
± 3.6%
|
49%
|
40%
|
––
|
11%
|
Poll source
|
Date(s) administered
|
Sample size
|
Margin of error
|
John Ensign (R)
|
Catherine C. Masto (D)
|
Other
|
Undecided
|
Public Policy Polling
|
January 3–5, 2011
|
932
|
± 3.2%
|
42%
|
44%
|
––
|
14%
|
Public Policy Polling
|
July 16–18, 2010
|
630
|
± 3.9%
|
48%
|
38%
|
––
|
14%
|
Poll source
|
Date(s) administered
|
Sample size
|
Margin of error
|
John Ensign (R)
|
Oscar Goodman (D)
|
Other
|
Undecided
|
Public Policy Polling
|
January 3–5, 2011
|
932
|
± 3.2%
|
35%
|
45%
|
––
|
20%
|
Public Policy Polling
|
January 11–12, 2010
|
763
|
± 3.6%
|
43%
|
41%
|
––
|
16%
|
Poll source
|
Date(s) administered
|
Sample size
|
Margin of error
|
John Ensign (R)
|
Ross Miller (D)
|
Other
|
Undecided
|
Public Policy Polling
|
January 3–5, 2011
|
932
|
± 3.2%
|
39%
|
40%
|
––
|
21%
|
Public Policy Polling
|
January 11–12, 2010
|
763
|
± 3.6%
|
47%
|
36%
|
––
|
18%
|
Poll source
|
Date(s) administered
|
Sample size
|
Margin of error
|
John Ensign (R)
|
Dina Titus (D)
|
Other
|
Undecided
|
Public Policy Polling
|
July 16–18, 2010
|
630
|
± 3.9%
|
51%
|
41%
|
––
|
8%
|
|
General Election Polling
[edit]
Poll source
|
Date(s) administered
|
Sample size
|
Margin of Error
|
|
|
Other
|
Undecided
|
|
|
Tim Kaine
|
George Allen
|
Marist
|
May 17-20, 2012
|
1076
|
± 3%
|
49%
|
43%
|
-
|
9%
|
Washington Post
|
April 28 - May 2, 2012
|
964
|
± 4%
|
46%
|
46%
|
-
|
8%
|
Public Policy Polling
|
April 26-29, 2012
|
680
|
± 3.8%
|
46%
|
45%
|
-
|
9%
|
Rasmussen Reports
|
April 23, 2012
|
500
|
± 4.5%
|
45%
|
46%
|
4%
|
5%
|
Roanoke College
|
March 26–April 5, 2012
|
537
|
± 4.2%
|
39%
|
46%
|
-
|
15%
|
Rasmussen Reports
|
March 20, 2012
|
500
|
± 4.5%
|
44%
|
46%
|
3%
|
7%
|
Quinnipiac
|
March 13–18, 2012
|
1,034
|
± 3.1%
|
47%
|
44%
|
1%
|
8%
|
NBC News/Marist
|
February 29–March 2, 2012
|
2,518
|
± 2%
|
48%
|
39%
|
-
|
14%
|
Roanoke College
|
February 13–26, 2012
|
607
|
± 4.0%
|
37%
|
45%
|
-
|
19%
|
Rasmussen Reports
|
February 21, 2012
|
500
|
± 4.5%
|
46%
|
46%
|
3%
|
5%
|
CNU/Times-Dispatch
|
February 4–13, 2012
|
1,018
|
± 3.1%
|
40%
|
42%
|
2%
|
16%
|
Quinnipiac
|
February 1–6, 2012
|
1,544
|
± 2.5%
|
45%
|
44%
|
1%
|
9%
|
Mason-Dixon
|
January 16–18, 2012
|
625
|
± 3.9%
|
46%
|
46%
|
-
|
8%
|
Quinnipiac
|
December 13–19, 2011
|
1,135
|
± 2.9%
|
42%
|
44%
|
1%
|
12%
|
Public Policy Polling
|
December 10–12, 2011
|
600
|
± 4.0%
|
47%
|
42%
|
-
|
11%
|
Quinnipiac
|
October 3–9, 2011
|
1,459
|
± 2.6%
|
45%
|
44%
|
1%
|
9%
|
CNU/Times-Dispatch
|
October 3–8, 2011
|
1,027
|
± 3.1%
|
44%
|
42%
|
3%
|
12%
|
Rasmussen Reports
|
September 28, 2011
|
500
|
± 4.5%
|
46%
|
45%
|
3%
|
7%
|
Quinnipiac
|
September 7–12, 2011
|
1,368
|
± 4.0%
|
44%
|
45%
|
1%
|
9%
|
Public Policy Polling
|
July 21–24, 2011
|
500
|
± 4.4%
|
46%
|
43%
|
-
|
11%
|
Quinnipiac
|
June 21–27, 2011
|
1,434
|
± 2.6%
|
43%
|
42%
|
2%
|
11%
|
Public Policy Polling
|
May 5–8, 2011
|
547
|
± 4.2%
|
46%
|
44%
|
–
|
10%
|
Washington Post
|
April 28 – May 4, 2011
|
1,040
|
± 3.5%
|
46%
|
46%
|
-
|
6%
|
Public Policy Polling
|
February 24–27, 2011
|
524
|
± 3.5%
|
47%
|
47%
|
–
|
6%
|
Public Policy Polling
|
November 10–13, 2010
|
551
|
± 4.2%
|
50%
|
44%
|
–
|
6%
|
General Election Polling
[edit]
Poll source
|
Date(s) administered
|
Sample size
|
Margin of Error
|
|
File:Photo-warren-s.jpg
|
Other
|
Undecided
|
|
|
Scott Brown Incumbent
|
Elizabeth Warren
|
Final vote
|
November 6, 2012
|
TBD
|
|
TBD
|
TBD
|
TBD
|
|
Suffolk/WHDH
|
May 20-22, 2012
|
600
|
±4.0%
|
48
|
47%
|
-
|
5%
|
Rasmussen Reports
|
May 7, 2012
|
500
|
±4.5%
|
45%
|
45%
|
2%
|
8%
|
Mass Inc.
|
April 25-28, 2012
|
438
|
±4.7%
|
41%
|
43
|
1%
|
12%
|
Rasmussen Reports
|
April 9, 2012
|
500
|
±4.5%
|
45%
|
46
|
1%
|
8%
|
Boston Globe
|
March 21–27, 2012
|
544
|
±4.2%
|
37
|
35%
|
-
|
26%
|
Public Policy Polling
|
March 16–18, 2012
|
936
|
±3.2%
|
41%
|
46%
|
-
|
13%
|
Western N.E. University
|
February 23 – March 1, 2012
|
527
|
±4.3%
|
49%
|
41%
|
-
|
10%
|
Rasmussen Reports
|
February 29, 2012
|
500
|
±4.5%
|
49%
|
44%
|
2%
|
5%
|
Suffolk/WHDH
|
February 11–15, 2012
|
600
|
±4.0%
|
49%
|
40%
|
2%
|
9%
|
WBUR/MassInc
|
February 6–9, 2012
|
505
|
±4.4%
|
43%
|
46%
|
1%
|
11%
|
Mass Insight/Opinion Dynamics
|
January 31 – February 4, 2012
|
456
|
±4.6%
|
52%
|
42%
|
-
|
6%
|
Boston Herald/UMass Lowell
|
December 1–6, 2011
|
505
|
±5.3%
|
42%
|
49%
|
3%
|
6%
|
YouGov America/UMass Amherst
|
November 9–22, 2011
|
433
|
±4.4%
|
39%
|
43%
|
4%
|
14%
|
Western N.E. University
|
September 29 – October 5, 2011
|
475
|
±4.5%
|
47%
|
42%
|
-
|
10
|
UMass Lowell
|
September 22–28, 2011
|
1005
|
±3.8%
|
41%
|
38%
|
3%
|
14%
|
Public Policy Polling
|
September 16–18, 2011
|
957
|
±3.2%
|
44%
|
46%
|
-
|
10%
|
Public Policy Polling
|
June 2–5, 2011
|
957
|
±3.2%
|
47%
|
32%
|
-
|
21%
|
Western N.E. University
|
March 6–10, 2011
|
472
|
± 4.5%
|
51%
|
34%
|
-
|
14%
|
Poll source
|
Date(s) administered
|
Sample size
|
Margin of Error
|
|
|
Other
|
Undecided
|
|
|
Debbie Stabenow Incumbent
|
Pete Hoekstra
|
EPIC-MRA
|
September 8-10, 2012
|
600
|
± 4%
|
49%
|
38%
|
—
|
—
|
Public Policy Polling
|
August 31 - Sept 2, 2012
|
815
|
± 3.4%
|
50%
|
41%
|
—
|
9%
|
EPIC-MRA
|
August 28, 2012
|
1,200
|
± 2.6%
|
51%
|
44%
|
—
|
5%
|
Mitchell Research
|
August 23, 2012
|
1,277
|
± 2.7%
|
44%
|
45%
|
—
|
11%
|
Detroit News
|
August 18-20, 2012
|
600
|
± 4.0%
|
48%
|
40%
|
—
|
12%
|
Bouydon-Foster
|
August 16, 2012
|
1,733
|
± 2.3%
|
46%
|
48%
|
3%
|
5%
|
Bouydon-Foster
|
July 28, 2012
|
1,046
|
± 3.03%
|
53%
|
43%
|
5%
|
3%
|
EPIC-MRA
|
July 24-31, 2012
|
600
|
± 4.0%
|
49%
|
35%
|
—
|
16%
|
Rasmussen Reports
|
July 23, 2012
|
500
|
± 4.5%
|
46%
|
40%
|
4%
|
10%
|
Public Policy Polling
|
July 21-23, 2012
|
579
|
± 4.1%
|
52%
|
38%
|
—
|
10%
|
Public Policy Polling
|
July 21-23, 2012
|
579
|
± 4.1%
|
52%
|
38%
|
—
|
10%
|
NBC News/Marist
|
June 24-25, 2012
|
1,078
|
± 3.0%
|
49%
|
37%
|
—
|
14%
|
Rasmussen Reports
|
June 14, 2012
|
500
|
± 4.5%
|
48%
|
39%
|
3%
|
10%
|
EPIC-MRA
|
June 2-5, 2012
|
600
|
± 4.0%
|
49%
|
38%
|
—
|
13%
|
Public Policy Polling
|
May 24-27, 2012
|
500
|
± 4.4%
|
53%
|
37%
|
—
|
10%
|
NBC News/Marist
|
February 19-20, 2012
|
3,149
|
± 1.8%
|
53%
|
32%
|
—
|
15%
|
Public Policy Polling
|
February 10-12, 2012
|
560
|
± 4.1%
|
51%
|
37%
|
—
|
12%
|
EPIC-MRA
|
November 13-16, 2011
|
600
|
± 4.0%
|
48%
|
42%
|
—
|
10%
|
EPIC-MRA
|
August 13-16, 2011
|
600
|
± 4.0%
|
47%
|
38%
|
—
|
15%
|
Public Policy Polling
|
July 21-24, 2011
|
593
|
± 4.0%
|
50%
|
41%
|
—
|
9%
|
Public Policy Polling
|
March 18-20, 2011
|
502
|
± 4.4%
|
50%
|
38%
|
—
|
12%
|
EPIC-MRA
|
February 12-17, 2011
|
600
|
± 4.0%
|
44%
|
42%
|
—
|
14%
|
Public Policy Polling
|
December 3-6, 2010
|
1,224
|
± 2.8%
|
45%
|
44%
|
—
|
11%
|
Hypothetical polling
|
Poll source
|
Date(s) administered
|
Sample size
|
Margin of error
|
Debbie Stabenow (D)
|
Randy Hekman (R)
|
Other
|
Undecided
|
Public Policy Polling
|
July 21-24, 2011
|
593
|
± 4.0%
|
52%
|
36%
|
—
|
12%
|
Public Policy Polling
|
March 18-20, 2011
|
502
|
± 4.4%
|
52%
|
33%
|
—
|
15%
|
Poll source
|
Date(s) administered
|
Sample size
|
Margin of error
|
Debbie Stabenow (D)
|
Peter Konetchy (R)
|
Other
|
Undecided
|
Public Policy Polling
|
July 21-24, 2011
|
593
|
± 4.0%
|
52%
|
31%
|
—
|
18%
|
Poll source
|
Date(s) administered
|
Sample size
|
Margin of error
|
Debbie Stabenow (D)
|
Tim Leuliette (R)
|
Other
|
Undecided
|
Public Policy Polling
|
December 3-6, 2010
|
1,224
|
± 2.8%
|
47%
|
30%
|
—
|
24%
|
Poll source
|
Date(s) administered
|
Sample size
|
Margin of error
|
Debbie Stabenow (D)
|
Saul Anuzis (R)
|
Other
|
Undecided
|
Public Policy Polling
|
March 18-20, 2011
|
502
|
± 4.4%
|
52%
|
35%
|
—
|
13%
|
Poll source
|
Date(s) administered
|
Sample size
|
Margin of error
|
Debbie Stabenow (D)
|
John Engler (R)
|
Other
|
Undecided
|
Public Policy Polling
|
December 3-6, 2010
|
1,224
|
± 2.8%
|
49%
|
42%
|
—
|
9%
|
Poll source
|
Date(s) administered
|
Sample size
|
Margin of error
|
Debbie Stabenow (D)
|
Terri Lynn Land (R)
|
Other
|
Undecided
|
Public Policy Polling
|
March 18-20, 2011
|
502
|
± 4.4%
|
48%
|
38%
|
—
|
14%
|
Public Policy Polling
|
December 3-6, 2010
|
1,224
|
± 2.8%
|
45%
|
41%
|
—
|
14%
|
Poll source
|
Date(s) administered
|
Sample size
|
Margin of error
|
Debbie Stabenow (D)
|
John McCulloch (R)
|
Other
|
Undecided
|
Public Policy Polling
|
July 21-24, 2011
|
593
|
± 4.0%
|
52%
|
32%
|
—
|
16%
|
Poll source
|
Date(s) administered
|
Sample size
|
Margin of error
|
Debbie Stabenow (D)
|
Candice Miller (R)
|
Other
|
Undecided
|
Public Policy Polling
|
December 3-6, 2010
|
1,224
|
± 2.8%
|
43%
|
41%
|
—
|
15%
|
|
General Election Polling
[edit]